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Gillietalls
Sep 24, 2013, 12:22 PM
Hi all. I'm ready to set up a new HTPC. I want to buy a mac mini and set it up on my Sony 4k tv. To get the cpu to run at 4k, what type of cords/adapters will I need? Will a high speed HDMI cable work? What other settings might I need to adjust to try to get the TV to operate at 4k and about 25 - 29 hrz?



iPhil
Sep 24, 2013, 01:13 PM
Hi all. I'm ready to set up a new HTPC. I want to buy a mac mini and set it up on my Sony 4k tv. To get the cpu to run at 4k, what type of cords/adapters will I need? Will a high speed HDMI cable work? What other settings might I need to adjust to try to get the TV to operate at 4k and about 25 - 29 hrz?

Well to run Mini on a 4K display - need a Haswell Mini then use Thunderbolt connection to run @ 4K resolution ..


Haswell mini hasn't been announced yet ..

omvs
Sep 24, 2013, 04:45 PM
Hi all. I'm ready to set up a new HTPC. I want to buy a mac mini and set it up on my Sony 4k tv. To get the cpu to run at 4k, what type of cords/adapters will I need? Will a high speed HDMI cable work? What other settings might I need to adjust to try to get the TV to operate at 4k and about 25 - 29 hrz?

You don't need a haswell mini (though it'd give better graphics performance). Theoretically the HDMI port on the current mini is supposed to be high-speed, but driver-issues seem to prevent 4k resolution except at low frequency rates.

Easiest way to do this is with an Accell B086B-008B-2 adapter plugged into your thunderbolt port. That will give you 3840x2160x30Hz. With my Seiki 4k, it works out of the box on my 2011 mac mini. Some other users have found they needed to use switchresx to make up a mode for their TV's - not sure anybody has tried a sony set yet.

Gillietalls
Sep 24, 2013, 05:28 PM
You don't need a haswell mini (though it'd give better graphics performance). Theoretically the HDMI port on the current mini is supposed to be high-speed, but driver-issues seem to prevent 4k resolution except at low frequency rates.

Easiest way to do this is with an Accell B086B-008B-2 adapter plugged into your thunderbolt port. That will give you 3840x2160x30Hz. With my Seiki 4k, it works out of the box on my 2011 mac mini. Some other users have found they needed to use switchresx to make up a mode for their TV's - not sure anybody has tried a sony set yet.

Thanks for the info. What content have you been able to watch at 4k? Just Youtube or is there anywhere else to stream or download from? Have you tried gaming?

paulrbeers
Sep 24, 2013, 06:31 PM
Thanks for the info. What content have you been able to watch at 4k? Just Youtube or is there anywhere else to stream or download from? Have you tried gaming?

Seriously gaming? There isn't a GPU on earth that can game reasonably well at 4K! Let alone a Mac Mini!

Gillietalls
Sep 24, 2013, 07:21 PM
Seriously gaming? There isn't a GPU on earth that can game reasonably well at 4K! Let alone a Mac Mini!

Actually YouTube videos beg to differ. But thanks for much needed input.

paulrbeers
Sep 24, 2013, 07:31 PM
Actually YouTube videos beg to differ. But thanks for much needed input.

This I gotta see. They certainly aren't from a Mac and certainly NOT with an integrated GPU.....

omvs
Sep 25, 2013, 08:41 AM
Thanks for the info. What content have you been able to watch at 4k? Just Youtube or is there anywhere else to stream or download from? Have you tried gaming?

I'm currently using the TV for 2D cad at work - basically just a huge display (along with a 2560x1440 display out the hdmi port). For this sort of static work, 4k is really, really great. I'm now in the conundrum of whether I buy a second one so I can more effectively work from home...


I have tried a few less serious things:

- Video

A coworker pointed me at some 4k content. My mini (2011, AMD 6630) had problems with youtube 4k. I did manage to get a mp4 to play decently, but only using the Quicktime player. Mplayer / VLC had a terrible framerate - probably due to less acceleration happening in the gpu, or maybe just a lot more efficient code in quicktime.

Newer minis might be better. Any newer machine with a good discrete should have plenty of horsepower

- Gaming

My mini is underpowered for gaming even with more 'normal' resolutions - I can't remember how far I had to dial down D3 to look decent. The newer machines might be better, but I'd still bet it would be subpar.

I did drag my 2011 iMac (2GB 6970) into work to test. Borderlands 2 actually seemed almost playable at full 4k in OSX - though the 30Hz refresh limit is kinda annoying. In windows (or with a better gpu), i bet it'd hit the 30Hz limit all the time.

Until they have sets that can do 60Hz 4k, I doubt most people would be happy with it, even if you had a fantastic gpu.



Since you're looking at HTPC, I think it is doable. But 4k is probably overkill - there's just not a lot of content, and I expect that to be true for a while.


BTW: with the accell adapter, I do get audio over the connection - probably important to you on a HTPC setup.

SamTheeGeek
Sep 25, 2013, 10:32 AM
I for one want a mac mini that runs on a 4k display resolution, i remember when i had my alienware x51 it did support 4k resolution but man did it lag :S, so i hope in future updates when it supports 4k res, there will be no lag what so ever.

I know the new mac pro will support 4k but no doubt the price will be not soo tasty hahah.

Cave Man
Sep 25, 2013, 12:44 PM
Theoretically the HDMI port on the current mini is supposed to be high-speed, but driver-issues seem to prevent 4k resolution except at low frequency rates.

The HDMI port on all Macs is single-link so you won't get anything above 1920x1200. You need DisplayPort to get 4k resolution, and right now there's no way of doing that with Macs.

omvs
Sep 25, 2013, 01:43 PM
The HDMI port on all Macs is single-link so you won't get anything above 1920x1200. You need DisplayPort to get 4k resolution, and right now there's no way of doing that with Macs.

I don't believe thats incorrect. The HDMI port is driver locked to 165MHz - one user broken the locks for machines using intel or the nvidia chipset in the macbook pros. Under windows the lock doesn't exist, and you could do 2560x1440x60 or 3840x2160x30. And with the adapter described above, you can do it right out the displayport - using that right now in fact.

3840x2160x60 would require full HDMI 2.0 bandwidth, and basically not possible with current machines. Or a display-port 1.2 display - I believe asus makes a 30" that would work, but never tried it.

Cave Man
Sep 25, 2013, 03:20 PM
I don't believe thats incorrect. The HDMI port is driver locked to 165MHz - one user broken the locks for machines using intel or the nvidia chipset in the macbook pros.

The connector is a Type A HDMI connector, which is a version of single-link DVI but with audio. This connector is only capable of 1920x1200. The Type B HDMI connector is wider (more pins) and can get you 38402400, which is not quite 4k.

SamTheeGeek
Sep 26, 2013, 02:48 AM
The HDMI port on all Macs is single-link so you won't get anything above 1920x1200. You need DisplayPort to get 4k resolution, and right now there's no way of doing that with Macs.

When i was using my Alienware X51 it supported HDMI 4k connection no display port, i think apple can achieve that.

Cave Man
Sep 26, 2013, 11:03 AM
When i was using my Alienware X51 it supported HDMI 4k connection no display port, i think apple can achieve that.

Not through a single-link (Type A) HDMI port. If it could drive displays above 1920x1200 then it had to have a dual-link HDMI, dual-link DVI or (Mini) DisplayPort connector. Do you have a link to its specifications?

omvs
Sep 26, 2013, 11:22 AM
Not through a single-link (Type A) HDMI port. If it could drive displays above 1920x1200 then it had to have a dual-link HDMI, dual-link DVI or (Mini) DisplayPort connector. Do you have a link to its specifications?

I think you're a bit confused. You seem to be thinking of the type B connector, which adds extra diff pairs and would be similar to dual-link DVI, but has never been used in any products (according to wikipedia).

HDMI 1.3 increased the bandwidth over the same number of diff pairs by increasing signal rate (3.4Gbit/channel from 1.65Gbit/chanel). 'High speed' cables use the exact same pinout, and increase the total bandwidth to ~10Gbit by increasing per-lane bandwidth. HDMI 2.0 will go even further, allowing up to 18Gbit (6Gbit/channel).

The mac mini has been using a HDMI 1.4 connector since the 2011 product (maybe even before) - under windows I've actually done 2560x1440x60Hz, while the maximum under osx is 40Hz because of the driver limit the bandwidth to 1.0 spec.

This has a good overview of the signalling rates
http://en.wikipedia.org/wiki/HDMI

SamTheeGeek
Sep 26, 2013, 02:35 PM
Not through a single-link (Type A) HDMI port. If it could drive displays above 1920x1200 then it had to have a dual-link HDMI, dual-link DVI or (Mini) DisplayPort connector. Do you have a link to its specifications?

Sorry that i can't provide a lot of information but i can say that the video card is GTX 660 Nvidia.

Tai-Stick
Oct 24, 2013, 09:58 PM
You don't need a haswell mini (though it'd give better graphics performance). Theoretically the HDMI port on the current mini is supposed to be high-speed, but driver-issues seem to prevent 4k resolution except at low frequency rates.

Easiest way to do this is with an Accell B086B-008B-2 adapter plugged into your thunderbolt port. That will give you 3840x2160x30Hz. With my Seiki 4k, it works out of the box on my 2011 mac mini. Some other users have found they needed to use switchresx to make up a mode for their TV's - not sure anybody has tried a sony set yet.

I've purchased the same 39" display along with the active mdp-hdmi adapter with two different intel 3000 based mid 2011 Mac Mini 5,1's and switchresX and so far I've had no luck on both 10.7 and 10.8. At one point I saw a corrupted boot screen showing most of the apple logo at 2160p, but it soon reverted to a 1080p. Not sure if this combination of hardware will be able to produce UHD resolution unless someone can chime in. I'm still trying to figure out what settings I should use with switchresX to see if it can work.

iPhil
Oct 24, 2013, 11:34 PM
I've purchased the same 39" display along with the active mdp-hdmi adapter with two different intel 3000 based mid 2011 Mac Mini 5,1's and switchresX and so far I've had no luck on both 10.7 and 10.8. At one point I saw a corrupted boot screen showing most of the apple logo at 2160p, but it soon reverted to a 1080p. Not sure if this combination of hardware will be able to produce UHD resolution unless someone can chime in. I'm still trying to figure out what settings I should use with switchresX to see if it can work.

Any Mac that has haswell chip or HDMI 1.4 spec ( MP so far on 1.4 spec wise ) will be able to push a 4K display ... in case of MP it could push 3x 4K displays ...


Any Mac without Haswell chip or 1.4 spec of HDMI will result in issues of trying to run a 4K display on a system won't support it ..

mkrjf
Nov 8, 2013, 05:30 PM
The cable vendors and many forums have lots of 'works at 4K' tag lines, but the reality is that none of the claims are typically true!!
What mac models running Mavericks REALLY seen with YOUR OWN EYES work driving 2160P via minidisplayport / thunderbolt?
From Apple site - there is only one model currently available that is listed as supporting 4K (that includes 2160P - 3840x2160) at 24fps - namely the 15" retina mackbookpro (LATE 2013! model).
I have 2011 macbookpro 17" and it does not seem to work. I would try switcherX if I knew it would work - but sending emails to Stephane (from the website) for details results in invalid email address.

Does anyone have FACTUAL information about what Mac can work driving 2160p, and has anyone figured out a way to get 2011 macbookpro 17 to do so.

There are several variables - the pixel clock, the various adaptors, the thunderbolt to hdmi convertor, and don't forget Apple's code that could disable it from working for various reasons even though physically possible.
The claim that "X can theoretically do Y" is meaningless in the context of computers and consumer electronics. The marketing and business specifications are more relevant than the engineering specifications in this case.
Thx

Rich.Cohen
Nov 9, 2013, 09:22 AM
I'm currently using the TV for 2D cad at work - basically just a huge display (along with a 2560x1440 display out the hdmi port). For this sort of static work, 4k is really, really great.

I have a similar need for a 4K monitor, but I'm looking at running it from a new Mac Pro. I'm a data modeler - anything from 100 to 1000 labeled and colored boxes with twice that number of connections (Entity Relationship Diagram) on a single drawing that can exceed 5' X 20'. For me the more pixels the better. I'm considering either a 39" Seiki or a 50" Seiki until something better comes along. I can play games and watch videos on my existing HP 3065.

Earlier this week I started a thread on the Mac Pro forum asking questions about the Seiki and got mostly negative responses. You seem to be happy with yours and your needs seem very similar to mine. For your CAD work, do you see any serious drawbacks to the Seiki? The price is great. If I buy one my investment won't be so large I can't replace it later. My current intent is to wait till the end of January to make a decision, but I'd like to buy a larger monitor when I buy the nMP.

omvs
Nov 9, 2013, 09:57 AM
...you seem to be happy with yours and your needs seem very similar to mine. For your CAD work, do you see any serious drawbacks to the Seiki? ...

Mouse lag is the biggest downside - when I was restricted to 17Hz refresh, it was really annoying. At 30Hz its much better, though noticeable compared to the secondary display. But it was enough to convince a coworker to get a used HP3065 (2560x1600) instead. I wish I could push the monitor to 40Hz - I know from past experience that feels smooth for me.


Everything else is minor -- since its a TV it'll power off after 4 hours if no buttons on the remote have been pressed. Thats somewhat a positive since it won't go into standby when the computer shuts off video like a normal monitor would.

I would never got back at this point to dual 27's. The only thing preventing me from getting a second 40" for home is the hope that there will be an affordable, 60Hz set in the near future. Probably not going to happen though.

omvs
Nov 9, 2013, 10:33 AM
FYI: Here's what I've successfully tried with my Seiki 39UY04

15" Retina Macbook Pro (2012, nv650 gpu) - works straight from HDMI

Mac Mini (2011 w/ ATI 6630) - w/ Accell active adapter & switchresx
iMac 27" (2011 w/ ATI 6970) - w/ Accell active adapter & switchresx

I have a older Macbook Pro (nv9600) I could test as well, though I'd have to steal it from my wife to test.

The Accell adapter opens up a lot of possibilities, since it looks like displayport rather than HDMI to the computer. Does chew up a thunderbolt/mdp port though.

Rich.Cohen
Nov 9, 2013, 12:05 PM
FYI: The Accell adapter opens up a lot of possibilities, since it looks like displayport rather than HDMI to the computer. Does chew up a thunderbolt/mdp port though.

What is an Accell adapter? Does it work with the Seiki 39" TV when that is used as a 3840 X 2160 monitor?

omvs
Nov 9, 2013, 04:34 PM
What is an Accell adapter? Does it work with the Seiki 39" TV when that is used as a 3840 X 2160 monitor?

The Accell B086B-008B-2 adapter is what I've been using to run my Seiki 39UY04 at 30Hz with my various machines. Here's the amazon link:

http://www.amazon.com/Accell-B086B-008B-2-UltraAV-DisplayPort-Adapter/dp/B00DOZHL82

I believe what its doing is using a chip inside the adapter to make the connection look like displayport rather than a passive HDMI adapter -- this bypasses the OSX driver limitations on HDMI.

Not sure if it still gives HDCP (not even sure how to test though), though I do know audio can be exported over the link - the monitor shows up as a possible output device in sound prefs.


Further note: There's a passive adapter that looks almost identical - the B086B-005B-2 - I accidentally bought one of these the second time around, and it did NOT work with my older macs - in this case I believe the machine does see the connection as HDMI rather than DP. I've been using it with my rMBP since it does not have the HDMI limitations in 10.9

Rich.Cohen
Nov 9, 2013, 05:04 PM
The Accell B086B-008B-2 adapter is what I've been using to run my Seiki 39UY04 at 30Hz with my various machines.

Thanks for the information. I'll keep that in mind. I'm not sure if it will work with the new Mac Pro I plan to buy in December. My interest is in running a 40"-50" monitor and the Seiki is relatively cheep. However, I understand there can be problems making the Seiki work. This adapter may be needed, but I may have to connect it to a Thunderbolt to display port adapter. Oh the fun of serial adapters.

Moonjumper
Nov 9, 2013, 05:14 PM
From Apple site - there is only one model currently available that is listed as supporting 4K (that includes 2160P - 3840x2160) at 24fps - namely the 15" retina mackbookpro (LATE 2013! model).

The 13" rMBP Tech Specs also show it as supporting 4K at the same resolutions and frame rates as the 15".

hiutin
Nov 10, 2013, 04:19 AM
Thunderbolt 1 is not support 4k out isn't it?

genen
Nov 13, 2013, 06:48 PM
I just got one of these as well. After a few hr of testing here is what I found.

Works 'out of the box' at 4k with late 2012 rMBP via Accell adapter at 30hz For photo editing, this is just fine as nothing moves fast. For video editing its fine as well, but cant' see anything at 60p in real time if dealing with 60p footage.

On a Macbook mini mid 2013 i7, it only shows up as 1080p both on default HDMI port and via thunder port using Accell adapter. I have not been able to get the Mini to see it at full res.

There seem to be no reports that I've seen that detail getting it working at full res. Several people have comments like "Works great on my Mini" with no technical details so they may be 'ok' with 1080p

I have managed to screw up the settings on the mini using switchrex now to where it doesn't recognize the monitor at all :-) so will need to try and reset everything to factory on video settings.

If anyone HAS gotten this to work on a 2013 Mini (intel 4000) at full res, please post details!

hiutin
Nov 14, 2013, 03:47 PM
Anyone can test in 2013 late imac ?

It suck don't come with thunderbolt 2 ...... but oh well

reukiodo
Nov 25, 2013, 01:34 AM
In case anyone finds this thread through searching, the real solution to unlock higher resolution with HDMI in OS X is here:
http://forums.macrumors.com/showthread.php?t=1651886

rpseguin
Nov 30, 2013, 06:24 PM
I just got the 39" Seiki and I have a late 2011 17" MacBook Pro with mini-DisplayPort.
I have the Accell adapter on order

While waiting for the other adapter, I just tried a Unitek Y-6301 active mini-DisplayPort to HDMI adapter.
The Seiki came up as 1080p 60Hz, but in System Preferences -> Displays, 3840x2160 shows up in the list of available sizes. When I select it, the Seiki goes blue and never comes up.

Anybody have suggestions, or should I just wait for the Accell MDP->HDMI adapter?

Thanks!


You don't need a haswell mini (though it'd give better graphics performance). Theoretically the HDMI port on the current mini is supposed to be high-speed, but driver-issues seem to prevent 4k resolution except at low frequency rates.

Easiest way to do this is with an Accell B086B-008B-2 adapter plugged into your thunderbolt port. That will give you 3840x2160x30Hz. With my Seiki 4k, it works out of the box on my 2011 mac mini. Some other users have found they needed to use switchresx to make up a mode for their TV's - not sure anybody has tried a sony set yet.

omvs
Nov 30, 2013, 07:46 PM
...
While waiting for the other adapter, I just tried a Unitek Y-6301 active mini-DisplayPort to HDMI adapter.
The Seiki came up as 1080p 60Hz, but in System Preferences -> Displays, 3840x2160 shows up in the list of available sizes. When I select it, the Seiki goes blue and never comes up.
...

From a google search, its not clear the Unitek can support HDMI 1.4 data-rates - I see the max res listed as 1920x1200, which would be about half the required bandwidth. Sounds like the Seiki isn't getting a good signal through the adapter.

I'd expect better luck with the Accell - when I looked during the summer, it was the only active adapter I could find that claimed HDMI 1.4 compatibility.

rpseguin
Nov 30, 2013, 09:22 PM
Ok.
Thanks for the response!

I guess I just have to wait until Wed for the Accell to arrive. :-( I searched around locally for one of the Accell units for sale. No luck!

Thanks!
-Ralph



From a google search, its not clear the Unitek can support HDMI 1.4 data-rates - I see the max res listed as 1920x1200, which would be about half the required bandwidth. Sounds like the Seiki isn't getting a good signal through the adapter.

I'd expect better luck with the Accell - when I looked during the summer, it was the only active adapter I could find that claimed HDMI 1.4 compatibility.

willdog123
Dec 1, 2013, 11:28 AM
2012 Mac mini HD4000, with mavericks 10.9, and switchresX works with seiki 4k tv

i can get 4k@18hz using only hdmi from back of mini to hdmi of the seiki tv

i tried emailing "tomthemacuser" to remove the pixel clock but he hasn't replied yet, i think with the pixel clock removed i can get 30hz

also i did NOT need to use the Accell B086B-008B adapter, but only got 18hz using hdmi to hdmi

with the adapter maybe you can get 30hz with switchresX

if someone can please test with 2012 mac mini+adapter+switchresX that would be great

----------

The HDMI port on all Macs is single-link so you won't get anything above 1920x1200. You need DisplayPort to get 4k resolution, and right now there's no way of doing that with Macs.

this is INCORRECT i can output 4k@18hz from the hdmi port of a 2012 mac mini using switchresX

----------

I just got one of these as well. After a few hr of testing here is what I found.

Works 'out of the box' at 4k with late 2012 rMBP via Accell adapter at 30hz For photo editing, this is just fine as nothing moves fast. For video editing its fine as well, but cant' see anything at 60p in real time if dealing with 60p footage.

On a Macbook mini mid 2013 i7, it only shows up as 1080p both on default HDMI port and via thunder port using Accell adapter. I have not been able to get the Mini to see it at full res.

There seem to be no reports that I've seen that detail getting it working at full res. Several people have comments like "Works great on my Mini" with no technical details so they may be 'ok' with 1080p

I have managed to screw up the settings on the mini using switchrex now to where it doesn't recognize the monitor at all :-) so will need to try and reset everything to factory on video settings.

If anyone HAS gotten this to work on a 2013 Mini (intel 4000) at full res, please post details!

can you try using a 2013 mac mini + accell adapter + switchresX and see if you can get 30hz,

in switchresX you have to select ur monitor, then custom resolution, then select CVT-RB, then put in 3840x2160, and then 30hz at the bottom, then u have to restart, and go back into switchresX and select the new setting, it usually won't automatically go into 4k when u restart

rpseguin
Dec 2, 2013, 12:50 AM
While waiting for the Accell miniDP->HDMI adapter to arrive, I built up a Ubuntu Linux box this morning with a GTX-680 graphics card and hooked the Seiki 39" to the HDMI port.
I updated the system and installed the NVidia accelerated Xorg server.
It was still coming up 1080p and not showing 3840x2160 as a display res choice. I created a config file with an adjusted modeline and it worked!

It is _BEAUTIFUL_!

I think the Seiki 39" is going to work nicely as a primary display or I might put this display in between my 2 30" 2560x1600 cinema displays.

At my work, we have a couple Toshiba 4K 55" monitors that we bought several years ago for working with SDO and other solar image data. The Toshiba displays are very nice, but you have to drive them with 2 dual-link DVI inputs (easy to do) and they cost almost $30000.00 each when we got them..., so the cost per pixel is quite a bit lower with the Seiki.

mkrjf
Jan 2, 2014, 03:46 PM
Apparently switchresx is enabling 4K on my 2011-12 17" macbookpro but the Radeon card driver is not supporting. One of the gurus on this forum told me the nvidia driver was modified on various models to also allow 4K, but that has not been done for the radeon card in this laptop. Just want to preview 4K 24fps (2160P) on seiki 55".
Any Radeon hackers out there? Is it a big deal? Would you be willing to help? If I motivate you$?
Thx

seltzered
Jan 11, 2014, 12:52 AM
While waiting for the Accell miniDP->HDMI adapter to arrive, I built up a Ubuntu Linux box this morning with a GTX-680 graphics card and hooked the Seiki 39" to the HDMI port.
I updated the system and installed the NVidia accelerated Xorg server.
It was still coming up 1080p and not showing 3840x2160 as a display res choice. I created a config file with an adjusted modeline and it worked!

It is _BEAUTIFUL_!

I think the Seiki 39" is going to work nicely as a primary display or I might put this display in between my 2 30" 2560x1600 cinema displays.

At my work, we have a couple Toshiba 4K 55" monitors that we bought several years ago for working with SDO and other solar image data. The Toshiba displays are very nice, but you have to drive them with 2 dual-link DVI inputs (easy to do) and they cost almost $30000.00 each when we got them..., so the cost per pixel is quite a bit lower with the Seiki.

curious, did you have any luck with the accell adapter w/ the 2011 mbp 17" ? have a similar setup.

rpseguin
Jan 17, 2014, 01:11 PM
curious, did you have any luck with the accell adapter w/ the 2011 mbp 17" ? have a similar setup.

Yep!
The Accell active adapter works just fine with my late 2011 MacBook Pro 17", as does my MacPro 5,1 with ATI Radeon 5770.

I would recommend just sticking with the Accell adapter:
http://www.amazon.com/Accell-B086B-008B-UltraAV-DisplayPort-Adapter/dp/B00ESFEUSG/ref=sr_1_3?ie=UTF8&qid=1389985825&sr=8-3&keywords=accell+hdmi

I also bought another MDP->HDMI adapter from eBay that claimed it did 4K, but no go on that one...

dmayle
Jan 18, 2014, 05:46 PM
Hey guys... I posted this in one of the other threads, but I just got the Seiki 4k 39" to go with my mini. I'm running Mavericks, so I'm limited to 17 Hz without a working pixel clock patch.

Does anyone have copies of both the original and patched files from an earlier OS version (the script saves a .bak file automatically, so they should both be there).

I'd like to try to understand what the patch is doing so that I can create a version that works in Mavericks.

Thanks!

bleepjay
Jan 30, 2014, 10:07 AM
Any update on this? Would love to use this Seiki 39 4K at more than 17Hz. It's a little to slow for my needs.

rpseguin
Jan 30, 2014, 03:28 PM
Any update on this? Would love to use this Seiki 39 4K at more than 17Hz. It's a little to slow for my needs.

17Hz?
It runs at 30Hz on my MacBook Pro 17" and on my MacPro 5,1

----------

http://www.amazon.com/Toshiba-65L9300U-65-Inch-Ultra-240Hz/dp/B00DG0977S

Since Costco has the Toshiba 65" 3D 4K display for sale for $3000 right now, I brought my MacBook Pro 17" with the Accell mini-displayport -> HDMI 1.4 active adapter in (which drives my Seiki 4K just fine) to try it out.

I was trying get the Toshiba to run at 4K, but it would only come up as 1080p. Higher resolutions were not available.
When I tried setting it to 30Hz (what I use to drive the Seiki 4K), the Toshiba wouldn't sync at all.

Has anybody tried the Toshiba 4K 3D display?
Driven it at 4K from a Mac?
How?
What computer(s) and adapter(s)?


For those that are interested in pretty movies/pictures of the Sun, I have basically unlimited 4Kx4K content (I work on the SDO/AIA science team).

It would be pretty easy for me to make 3840x2160 native resolution cutout movies of SDO data...
Anybody want some?

bleepjay
Jan 31, 2014, 02:37 PM
I have a Mac Mini and a Macbook Pro 17" (8,3) and can't get it past 17Hz with SwitchResX.

How are you getting that resolution (3840x2160@30Hz) on your 17" Macbook Pro? Are you on Mavericks (10.9) or Mountain Lion (10.8)?

Ancaster
May 2, 2014, 09:15 PM
Bump, any updates on this? I'm considering a Samsung U28D590D.

I have the 2.3G i7 mini on 10.9.2. Has anyone used this (http://forums.macrumors.com/showpost.php?p=18838079&postcount=54) method to remove the pixel clock limitation on 10.9.2?

CosmoFox
May 2, 2014, 10:01 PM
I'm considering a Mac Pro to run a 4K projector (when they are released this year). I think a Mini could do it, but not the current ones very well.

reukiodo
May 9, 2014, 12:51 AM
For those that are interested in pretty movies/pictures of the Sun, I have basically unlimited 4Kx4K content (I work on the SDO/AIA science team).

It would be pretty easy for me to make 3840x2160 native resolution cutout movies of SDO data...
Anybody want some?

Please do share! Could you possibly put them up in MP4 format playable by Quicktime? It seems to have the best performance.

Ancaster
May 11, 2014, 01:43 PM
What's the maximum resolution using DP anyway without any hacks?

ie; what scaled resolution would you get if you did plug in a Samsung 590?
Or would it not drive it or drive it properly at all?

iPhil
May 11, 2014, 04:41 PM
What's the maximum resolution using DP anyway without any hacks?

ie; what scaled resolution would you get if you did plug in a Samsung 590?
Or would it not drive it or drive it properly at all?



DP max resolution is 2560*1600

Ancaster
May 11, 2014, 09:24 PM
Thanks.
Anyone know if the latest current model Mac Mini would have any problems using that display?

My thoughts are to get a HengeDock and run the display at full resolution using my Haswell retina MBP. If I go portable with the rMBP, then I or family members would use the Mac Mini to power the Samsung 590, at a lower resolution, if there are no issues.

f6a8y09fsduigf
May 17, 2014, 05:04 PM
I got a Dell 28" P2815Q. This guy is 4k but will run at 30Hz. I plugged it into a 2011 27" iMac with Radeon HD 6970M 2GB running OS 10.9.2 and a Mini-DisplayPort -> DisplayPort cable and it just worked. The 30Hz thing is a big deal, but if you don't obsess over it, and you want years and years of pixels, I'd say go for it. I researched this a bunch and knew it would work @ 30Hz. I didn't do a lot of research for the 60Hz support on the OS X side. However, 30Hz displays like the 39" Seiki (60Hz with firmware upgrade?) and the P2815Q are cheap where has 60Hz support is expensive. Say hello to the 32" Dell UP3214Q for $3k (http://accessories.us.dell.com/sna/productdetail.aspx?c=us&l=en&cs=19&sku=210-ACBL)!

After reading "4k is for programmers (http://tiamat.tsotech.com/4k-is-for-programmers)" I set up one my developers running Linux on a the 39" Seiki and he loves it. I got the Dell P2815Q to use with my iMac knowing that 10.9.3 specifically adds 4k support to have retina style 1080p HiDPI:

Improved 4K display support in OS X 10.9.3 (http://www.macworld.com/article/2155464/hands-on-improved-4k-display-support-in-os-x-10-9-3.html)
Apple to enable pixel-doubled 'Retina' mode for 4K monitors in OS X 10.9.3 (http://forums.appleinsider.com/t/162783/apple-to-enable-pixel-doubled-retina-mode-for-4k-monitors-in-os-x-10-9-3)


Buyer beware! There seems to be a problem with 11" Haswell MacBook Airs and 4k displays: http://forums.macrumors.com/showthread.php?t=1646972

Mhotep
May 19, 2014, 11:27 AM
So I took the plunge and got a SEIKI 4k Monitor. Hooked it up to Mac mini with HDMI, not luck. Next tried the SEIKI HDMI up convert adapter. SEIKI then worked for a few seconds and then would flicker screen off and on. Next tried with Switchres and the SEIKI adapter. Max resolution would go to 2k resolution. So I decided to try the minidsplay port 4k converter from Accell. Hooked it up but Switchres will not go higher than than 2k. So figured I would uninstall switchers and see is the Accell can get to 4k by itself. Now the problem is I think Switchres has screwed something up with my 2012 mac mini.The way I got the 4k res with the SEIKI adapter was to change display settings to 1080i with refresh rate at 24 25 or 30. Now I can't set the refresh rate, only sees 50 or 60. Weird things is when rebooting and screen pops on SEIKI says 4k resolution. So I think the Accell will work, just got to figure out how to undo what Switchres did to the Mac mini. Any ideas?